40193976 has 32 divisors (see below), whose sum is σ = 101283840. Its totient is φ = 13291488.

The previous prime is 40193957. The next prime is 40193983. The reversal of 40193976 is 67939104.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3546 + ... + 9641.

It is an arithmetic number, because the mean of its divisors is an integer number (3165120).

Almost surely, 2^40193976 is an apocalyptic number.

It is an amenable number.

40193976 is an abundant number, since it is smaller than the sum of its proper divisors (61089864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40193976 is a wasteful number, since it uses less digits than its factorization.

40193976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13323 (or 13319 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 40193976 is about 6339.8719229966. The cubic root of 40193976 is about 342.5471219375.

The spelling of 40193976 in words is "forty million, one hundred ninety-three thousand, nine hundred seventy-six".